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allow h_sequence(NULL) as parser for the empty sequence

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This commit is contained in:
Sven M. Hallberg 2015-11-01 17:49:53 +01:00
parent e8b1962005
commit 25acd90a48
2 changed files with 26 additions and 19 deletions
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2
src/t_parser.c
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@ -241,6 +241,7 @@ static void test_nothing_p(gconstpointer backend) {
static void test_sequence(gconstpointer backend) {
const HParser *sequence_1 = h_sequence(h_ch('a'), h_ch('b'), NULL);
const HParser *sequence_2 = h_sequence(h_ch('a'), h_whitespace(h_ch('b')), NULL);
const HParser *sequence_3 = h_sequence(NULL, NULL); // second NULL is to silence GCC
g_check_parse_match(sequence_1, (HParserBackend)GPOINTER_TO_INT(backend), "ab", 2, "(u0x61 u0x62)");
g_check_parse_failed(sequence_1, (HParserBackend)GPOINTER_TO_INT(backend), "a", 1);
@ -248,6 +249,7 @@ static void test_sequence(gconstpointer backend) {
g_check_parse_match(sequence_2, (HParserBackend)GPOINTER_TO_INT(backend), "ab", 2, "(u0x61 u0x62)");
g_check_parse_match(sequence_2, (HParserBackend)GPOINTER_TO_INT(backend), "a b", 3, "(u0x61 u0x62)");
g_check_parse_match(sequence_2, (HParserBackend)GPOINTER_TO_INT(backend), "a b", 4, "(u0x61 u0x62)");
g_check_parse_match(sequence_3, (HParserBackend)GPOINTER_TO_INT(backend), "", 0, "()");
}
static void test_choice(gconstpointer backend) {